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Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Appendix B Specifications
FRSM-HS2 Specification
FRSM-HS2 Line
• Number of HSSI lines 2
• Line interface connector SCSI-2
• Line framing not applicable
• Synchronization: Transmitter can be either loop-timed to receiver (DTE mode), or synchronized to
shelf, (DCE mode)
• Input jitter tolerance
• Output jitter
Statistics and Counters Specifications
FRSM-HS2
Counters (per line)
Receive frames lost due to aborts
Receive frames lost due to illegal header (EA bit)
Receive frames lost due to CRC errors
Receive frames with bit alignment errors
Receive frames with unknown DLCI
Receive frames with illegal frame length
Receive good frame
Transmit frames lost due to under-run/Abort count
Transmit good frame
LMI status inquiry request count
LMI signaling protocol (keep alive time-out count)
LMI sequence number error count
LMI status transmit count (in response to request)
LMI update status transmit count (in response to configuration changes
Frames FECN set count
Frames BECN set count
DE frames discarded count
Number of frames reassembled but discarded due to service
interface physical layer alarm
Trouble shooting statistics: ECN current queue depth (per channel)